#pragma once

#include <iostream>
#include <pthread.h>

namespace MutexModule
{
    class Mutex
    {
    public:
        Mutex()
        {
            pthread_mutex_init(&_mutex, nullptr);
        }

        void Lock()
        {
            int n = pthread_mutex_lock(&_mutex);
            if(n != 0)
            {
                std::cerr << "Error: pthread_mutex_lock failed with error code " << n << std::endl;
            }
        }

        void UnLock()
        {
            int n = pthread_mutex_unlock(&_mutex);
            if(n != 0)
            {
                std::cerr << "Error: pthread_mutex_unlock failed with error code " << n << std::endl;       
            }
        }

        pthread_mutex_t *Get()
        {
            return &_mutex;
        }

        ~Mutex()
        {
            pthread_mutex_destroy(&_mutex);
        }
    private:
        pthread_mutex_t _mutex;
    };

    class LockGuard
    {
    public:
        LockGuard(Mutex &mutex) : _mutex(mutex)
        {
            _mutex.Lock();
        }
        
        ~LockGuard()
        {
            _mutex.UnLock();
        }
    private:
        Mutex &_mutex;
    };
}